Perth and Kinross · Scotland
Coupar Angus Window Mastic
Window mastic across Coupar Angus and nearby, with old sealant always removed completely and a 12-month guarantee.
- White mastic on grey or black frames
- Gaps left after new windows were fitted
- Leaking joints at the ends of sills
About our window mastic in Coupar Angus
From a single sill to a whole house of windows, you’ll get a clear quote before any work starts. Just drop us a line at info@mrmastic.co.uk and tell us how many frames there are and how they’re reached for window mastic in Coupar Angus. If you’re dealing with rain getting in at the frame or under the sill and untidy mastic left by window fitters, we can help, on composite doors, patio & French doors and uPVC windows alike.
Outdoor sealant needs a dry surface, so window work around Coupar Angus is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
There’s a 12-month guarantee on every job.
- Where
- Coupar Angus (PH13)
- Wider area
- Perth and Kinross
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Quotes for window mastic in Coupar Angus
The quote reflects the job in front of us. We look at:
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- Any mould that needs treating
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- The rough size of the job
- Any previous sealing or DIY work
- The address or postcode of the job
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Nearby places to Coupar Angus
Also in Coupar Angus
How the job changes by surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that’s what we find.
Landlords, agents and businesses in Coupar Angus
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Common questions in Coupar Angus
Do you cover smaller places like Coupar Angus?
Yes, Coupar Angus is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is window mastic in Coupar Angus guaranteed?
All our work, in Coupar Angus and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will new mastic stop draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we will tell you.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Can new window sealant be painted?
Silicone generally will not take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
What we do, step by step
At the end, we look at the finished work together. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. Outdoor work around Coupar Angus depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- On commercial sites, let us know about site rules
- Mention any tricky access
- Let us know about earlier repairs to the joints
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job, and photos are welcome.
Advice
Windows and doors in Coupar Angus
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Balhary House, about 4.9 miles north-east, is one of the historic houses in the wider area around Coupar Angus. In and around Coupar Angus, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Coupar Angus is about 4 miles south-east of Blairgowrie and Rattray, in Perth and Kinross. Anywhere in PH13, we can carry out window mastic at your property. Our Perth and Kinross coverage runs to 107 places, and Coupar Angus is one of them. For nearby work, see our Dundee page, about 12 miles away.
Work in PH13 is quoted and booked the same way as anywhere else. Window mastic is available to properties on George Square, High Street and Station Road and the roads around them. Main roads around Coupar Angus include the A94 and A923, so getting to you is simple. We also cover Markethill (1 mile south-east), Woodside (2 miles south-west), Burrelton (2 miles south-west), Ardler (3 miles north-east) and Carsie (3 miles north-west). Further out, we also cover Perth (12 miles south-west), Blairgowrie and Rattray (4 miles north-west), Letham (13 miles south-west), Scone (10 miles south-west), Tulloch (12 miles south-west) and Alyth (5 miles north).
Landmarks near Coupar Angus
Well-known places in the area include Blairgowrie Community Hospital (4 miles north-west) and Kinclaven Castle (4.2 miles west). The countryside around Coupar Angus includes Monk Myre and Northballo Hill.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What we can’t put right
We won’t take on work that will not last, so here’s what sealant can’t put right:
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Window sills
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
Leave it or put it right?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Around Coupar Angus, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why book with us
- Quality sealants from Arbo and Everbuild
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- Approved under the ARBOMaster scheme
See what affects the cost and our reviews.
